<div class="modal-header">
    <div class="modal-title">设备证书</div>
  </div>
  <p>    <button nz-button [nzType]="'primary'" [nzSize]="'large'" (click)="gen()"> 生成证书 </button>    <button nz-button [nzType]="'primary'" [nzSize]="'large'" (click)="download()"> 下载证书 </button></p>
  <div class="modal-footer">
    <button nz-button [nzType]="'default'" [nzSize]="'large'" (click)="cancel()"> 取消 </button>

  </div>
  